Assessments - 2, GPA: 3.5 ( )

Fabricante : Gas-Fired Products Arquivo Tamanho: 1.33 mb Arquivo Nome : Língua de Ensino:

Using a small screwdriver, turn the adjustment screw clockwise O to increase or counterclockwise O to decrease the gas pressure to the burner. Replace the cover screw. NOTE: The step opening pressure of this gas valve is not adjustable. 4. Check the burner at step pressure, observing burner ignition and flame characteristics. The burner should ignite properly and without flashback to the orifice, and should remain lit. Cycle the burner several times. Wait 30 seconds between cycles to allow the A CAUTION Never jumper these terminals. This Pressure Reiulator Adlustment shorts °ut valve coil and maV »urn step opening combination gas valve or servo regulator to resume the first step action. Also, observe the burner operation at full pressure. Repeat after allowing to cool. (Gas pressures are shown in the following table.) GAS PRESSURE TABLE GAS TYPE Natural Gas MANIFOLD PRESSURE 3.5” W.C. SUPPLY F Minimum^ 5” W.C. •RESSURE Maximum 14” W.C. Propane Gas 10.0” W.C. 11” W.C. 14” W.C. * Minimum permissible gas supply pressure for purpose of input adjustment. 22) ELECTRICAL CONNECTIONS_ 1. All electric wiring shall conform to the latest edition of the National Electrical Code (ANSI/NFPA No. 70), or the code legally authorized in the locality where the installation is made. 2. The unit must be electrically grounded in accordance with the National Electrical Code (ANSI/NFPA No. 70-latest edition). In Canada, refer to current standard C22.1 Canadian Electrical Code Part 1. 3. The wiring providing power to the heater shall be connected to a permanently live electrical circuit, one that is not controlled by a light switch. 4. The electrical power to the heater shall be through an approved fused disconnect switch. The switch shall be located in the vicinity of the heater (check local codes for allowable distances) and should be identified as the heater control switch. All electrical wiring must be located in accordance with the required clearances to combustibles below the heater as listed on the nameplate of the heater. 5. When connecting the supply circuit to the heater, wiring material having a minimum size of 14 AWG and a temperature rating of at least 105°C shall be used. 6. The installer will provide strain relief for the power supply wires at the junction box. 7. LTS SERIES ONLY: The installer will provide type SJO wire cable having minimum size of 18 AWG and connect the ends to the draft inducer junction box and the control box. Secure with 3/8” connectors as previously described in the attachment of the control box and draft inducer. Connect wire leads as shown in the Connection Wiring Diagram. The SJO cable should be located and secured to protect it from mechanical damage. CONNECTION WIRING DIAGRAM Single Heater Per Thermostat Multiple Heaters Per Thermostat -E3- Fused Disconnect Switch ► Continue To Additional Hea**'» -E3-E3- TYPICAL WIRING AND THERMOSTAT CONNECTIONS 23) VENTING_ A. BASIC FLUE VENTING — Venting must com...

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